自 PHP 7 起不支持使用已弃用的 PHP4 样式 class 构造函数

Question

我正在尝试升级我在 SiteGround 上托管的 WP 网站的 PHP 版本。升级工具显示此错误：

33 | WARNING | Use of deprecated PHP4 style class constructor is not supported since PHP 7

这是我在给定位置找到的代码：

function gc_XmlBuilder($indent = '  ') {
  $this->indent = $indent;
  $this->xml = '<?xml version="1.0" encoding="utf-8"?>'."\n";
}

我该如何解决？

Answer 1

将函数更改为：

function __construct($indent = '  ') {
  $this->indent = $indent;
  $this->xml = '<?xml version="1.0" encoding="utf-8"?>'."\n";
}

因为您过去可以通过 class 名称定义构造函数，并且自 PHP 7 起已弃用：

PHP 4 style constructors (methods that have the same name as the class they are defined in) are deprecated, and will be removed in the future. PHP 7 will emit E_DEPRECATED if a PHP 4 constructor is the only constructor defined within a class. Classes that implement a __construct() method are unaffected.

错误示例，根据文档：

Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; foo has a deprecated constructor in example.php on line 3

自 PHP 7 起不支持使用已弃用的 PHP4 样式 class 构造函数

Use of deprecated PHP4 style class constructor is not supported since PHP 7

php

wordpress

warnings